TDA1581T Philips Semiconductors, TDA1581T Datasheet - Page 6

• Manufacturer Part Number: TDA1581T
• Description: Decoder for traffic warning VWF radio transmissions
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Note
1. selectable by R
March 1992
DK circuit
V
V
I
V
V
BK and DK filter amplifiers
G
G
I
V
V
I
R
C
Internal reference voltage
V
R
I
I
I
Reference current source
V
R
R
--------------------- -
V
V
2
i
o
8-20
20-8
8sc
17DKon
18-20off
2-20sat
2-20
o5-8
17-8
8-20
19-20
Decoder for traffic warning (VWF) radio
transmissions
o
L
8
i19
19-20
o
i
17DKoff
17DKon
SYMBOL
switch-on threshold level
switch hysteresis
DK switch threshold level for DK-off
(Schmitt trigger output)
(typ. value = 1
DK output (pin 2)
permitted load current
saturation voltage
rejection voltage
open loop gain
current gain
input bias current
output offset voltage
available output current
output resistance
permitted load capacitance
output voltage (typ. value = 0.5V
internal resistance of voltage source
available output current
output short-circuit current
(typ. value = V
reference voltage
(typ. value = V
internal biasing resistor
permitted range of external
reference resistor
14-8
or Z
12-8
PARAMETER
.
P
8-20
/ 1 k )
V
BE
V
)
BE
)
P
)
pin 2 high-Z
pin 2 conducting
I
I
f = 100 Hz
R
2
2
6
5-6
= 1.5 mA
< 5 A
CONDITIONS
= R
16-17
= 680 k
600
3.1
18
84
120
4.0
0.6
180
1
2
MIN.
670
3.6
0.6
2
4.25
3.6
5
8
TYP.
Preliminary specification
TDA1581T
750
4.1
0.5
0.35
3.5
50
4.5
5
270
MAX.
50
50
mV
dB
V
mA
V
V
dB
dB
nA
mV
mA
k
pF
V
mA
mA
mA
V
k
k
UNIT